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US1963346A - Paging apparatus - Google Patents

Paging apparatus Download PDF

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Publication number
US1963346A
US1963346A US515927A US51592731A US1963346A US 1963346 A US1963346 A US 1963346A US 515927 A US515927 A US 515927A US 51592731 A US51592731 A US 51592731A US 1963346 A US1963346 A US 1963346A
Authority
US
United States
Prior art keywords
paging apparatus
paging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US515927A
Inventor
Randall B Baker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOLTZER CABOT ELECTRIC CO
HOLTZER-CABOT ELECTRIC Co
Original Assignee
HOLTZER CABOT ELECTRIC CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US96475A external-priority patent/US1795536A/en
Application filed by HOLTZER CABOT ELECTRIC CO filed Critical HOLTZER CABOT ELECTRIC CO
Priority to US515927A priority Critical patent/US1963346A/en
Application granted granted Critical
Publication of US1963346A publication Critical patent/US1963346A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

US515927A 1926-03-22 1931-02-16 Paging apparatus Expired - Lifetime US1963346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US515927A US1963346A (en) 1926-03-22 1931-02-16 Paging apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96475A US1795536A (en) 1926-03-22 1926-03-22 Paging system
US515927A US1963346A (en) 1926-03-22 1931-02-16 Paging apparatus

Publications (1)

Publication Number Publication Date
US1963346A true US1963346A (en) 1934-06-19

Family

ID=26791744

Family Applications (1)

Application Number Title Priority Date Filing Date
US515927A Expired - Lifetime US1963346A (en) 1926-03-22 1931-02-16 Paging apparatus

Country Status (1)

Country Link
US (1) US1963346A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550133A (en) * 1951-04-24 Bookkeeping machine
US3118024A (en) * 1959-02-25 1964-01-14 Soroban Engineering Inc Automatic switching mechanism including latching means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550133A (en) * 1951-04-24 Bookkeeping machine
US3118024A (en) * 1959-02-25 1964-01-14 Soroban Engineering Inc Automatic switching mechanism including latching means

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