US1846261A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US1846261A
US1846261A US529528A US52952831A US1846261A US 1846261 A US1846261 A US 1846261A US 529528 A US529528 A US 529528A US 52952831 A US52952831 A US 52952831A US 1846261 A US1846261 A US 1846261A
Authority
US
United States
Prior art keywords
telephone system
filed april
sheet
feb
sheets
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
US529528A
Inventor
Linus E Kittredge
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Priority to US529528A priority Critical patent/US1846261A/en
Application granted granted Critical
Publication of US1846261A publication Critical patent/US1846261A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Description

Feb. 23, 1932. L. E. KITTREDGE 1,846,261
I TELEPHONE SYSTEM Filed April 11, 1931 20 Sheets-Sheet 1 Feb. 23, 1932. 1.. E. KITTREDGE TELEPHONE SYSTEM Filed April 11, 1931 20 SheetsrSheet 2 lNVENTOR By LE. K/TTREDGE NQI A 7' TORNEV Filed April 11, 1931 20 heets-Sheet 3 lNl/ENTOR L.E.K/TTREDGE kNm A TTORNEY Feb. 23, 1932. L. E. KITTREDGE 1,846,261
TELEPHONE SYSTEM Filed April 11, 1931 20 Sheets-Sheet 4 20 Sheets-Sheet 5 L. E; KiTTREDGE TELEPHONE SYSTEM Filed April 11, 1951 3 9m 36R NEE \GR INVENTOR dM/t' a Q 5 ,4 TTOR/VEJ/ .ll Hu -3G0 "L f. K/TTREDGE D. m M w 5525 M m m m w Feb. 23, 1932.
Feb. 23, 1932. L. E. KITTREDGE TELEPHONE SYSTEM Filed April 11, 1931 20 Sheets-Sheet 6 I'll ||||||t INVENTOR L E K/TTREDGE IHI' IIIHIIIH IHIHIIH I IN Illllllill INHIHIH Ill! llllllllll HIHIHHI A TTORNEV Feb 23,, 1932. 1.. E. KITTREDGE 1,345,251
TELEPHONE SYSTEM Filed April 11, 1951 20 ShfitS-SIIBGT. 7
INVENTOR L .EK/TTAEDGE A TTORNEV TELEPHONE SYSTEM Filed April 11, 1931 20 ShQBts-ShGGC 8 BY y V fw p ATTORNEY Feb. 23, 1932. E. KITTREDGE 1,846,261
TELEPHONE SYSTEM 20 Sheets-Sheet 9 Filed April 11, 1931 INVENTOR LE. K/TTREDGE A TTORNE Y Feb. 23; 1932. E. KITTREDGE 1,346,261
TELEPHONE SYSTEM Filed April 11, 1931 20 Shets-Sheet 10 IN I/E N TOR L.E.K/TTREDGE A TTOl-PNE Y ELM? v" n n q 22:5, 3%2. a... E. MTTREEME TELEPHONE SYS TEM Filed April 11, 1931 20 Sheets-Sheet INVENTOR AME. (/TTEUfiJE EV y4 mvag ATTORNEY Fez-Jo. a. E. WJW'WEDGE TELEPHONE SYSTEM Filed April 11, i951 2.0 Shee s-Sheet 12 lNV/SNTOR Li. #WTYWAETQGE A TTORNE) Feb. 23, 1932.
L, E. KITTREDG E TELEPHONE SYSTEM "Filed April 11, 1951 20 Sheets-Sheet 15 INVENTO/P LEK/TTREDGE A TT'ORNE Y Fgb. 23, 1932. L. E. KITTREDGE 1,846,261
TELEPHONE SYSTEM A Filed April 11, 1951 20 Sheets-Sheet 14 INVENTOR L. E. K/TTR/Q'DGE A TTORNEY Feb. 23, 1932. E. KITTREDGE 1,846,261
TELEPHONE sYs-TEM Filed April 11, 1931 20 Sheets-Sheet l6 INVENTOR L.E./(/ TTREDGE ATTORNEY FIG/6 Feb. 23, 1932. E. KITTREDGE TELEPHONE SYSTEM Filed April 11, 1931 20 Sheets-Sheet 17 lNVENTOR L .E. K/TTREDGE A TTORNE V Feb. 23, 1932. E. Kl'i'TREDGE TELEPHONE SYSTEM 20 Sheets-Sheet 18 Filed April 11, 1931 M Q Wham qumm\ w a m m Mbb nvvavrm L.E.K/TTREDGE A TTORNEY Feb. 23, 1932. L E KITT'REDGE 1,846,261
I TELEPHONE SYSTEM Filed April 11, 1931 v 20 Sheets-Sheet 1-55 /95 7 /9 7 [955 l 3 7A YEM 2 7 HUNDREDS POLAR/ZED //v VENTOR L.E./(/7'TREDGE
US529528A 1931-04-11 1931-04-11 Telephone system Expired - Lifetime US1846261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US529528A US1846261A (en) 1931-04-11 1931-04-11 Telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529528A US1846261A (en) 1931-04-11 1931-04-11 Telephone system

Publications (1)

Publication Number Publication Date
US1846261A true US1846261A (en) 1932-02-23

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Family Applications (1)

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US529528A Expired - Lifetime US1846261A (en) 1931-04-11 1931-04-11 Telephone system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2532750A (en) * 1946-08-03 1950-12-05 Automatic Telephone & Elect Calling line identifier having display device at operator's position
US2547804A (en) * 1946-07-25 1951-04-03 Automatic Telephone & Elect Telephone line identification system
US2550181A (en) * 1946-05-25 1951-04-24 Automatic Telephone & Elect Line identification system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2550181A (en) * 1946-05-25 1951-04-24 Automatic Telephone & Elect Line identification system
US2547804A (en) * 1946-07-25 1951-04-03 Automatic Telephone & Elect Telephone line identification system
US2532750A (en) * 1946-08-03 1950-12-05 Automatic Telephone & Elect Calling line identifier having display device at operator's position

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