US2298205A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US2298205A
US2298205A US325510A US32551040A US2298205A US 2298205 A US2298205 A US 2298205A US 325510 A US325510 A US 325510A US 32551040 A US32551040 A US 32551040A US 2298205 A US2298205 A US 2298205A
Authority
US
United States
Prior art keywords
sheets
sheet
telephone system
filed march
oct
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
US325510A
Inventor
Edson L Erwin
Frederick R Lamberty
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
Bell Telephone Laboratories 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
Priority to FR962012D priority Critical patent/FR962012A/fr
Priority to US324306A priority patent/US2298204A/en
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US325510A priority patent/US2298205A/en
Priority to US401925A priority patent/US2290205A/en
Application granted granted Critical
Publication of US2298205A publication Critical patent/US2298205A/en
Priority to GB5087/48A priority patent/GB656191A/en
Priority to GB5086/48A priority patent/GB656190A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/28—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels
    • A43B13/32—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels by adhesives
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Description

Oct. 6, 1942. E. L. ERwlN 'Er Al.
TELEPHONE SYSTEM Filed March 23. 1940 28 Sheets-Sheet 1 WW1." I AToRA/Ev By MTW Flc. 2
JUNCTOR C/RCU/T ot. 6, 1942.y
E. L. ERWIN ETAL TELEPHONE 'SYSTEM Filed March 2s. 1940 /NVN ToRs- 28 Sheets-Sheet 2 E L. ERW//v 'F.R. AMBER ry BY 'Luvkwwh'm'ng y ATTORNEY Oct. 6, 1942. E. l.. ERwlN ETAL TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 3 ,5, 1 ERw//v ME mmf'. RLAMBERTY @y Wrwdcw,
A TTORNEV m. UP*
Oct. 6, 1942. E. L. ERwlN :a1-AI. 2,298,205
` TELEPHONE SYSTEM Y n Filed March as, 1940 28 sheets-smet 4 CALL OR/G/NAT/NG L/NE SWITCHES A 7' TORNEY Oct. 6, 1942.
E. L. ERwlN Er AL TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 5 m. .Qi
' 5 L. ERW//v Mmm-RSF. R. LAME/ery A from/Ev Oct. 6, 1942.l E. L. RWIN r-:rAL
TELEPHONE SYSTEM' Filed March 2s, 1940 2a sheets-sheet 5. L. ERM/v NVENTORSF R; LAMBERTY E WYWWW? A TTQRA/Ev Oct. 6, 1942. E. L. ERWIN ETAL.
TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 7 ,5L Rw/N -MVENTORSR R. LAMBERW ATTORNEY oct. s, 1942.
E. L. ERWIN ETAL TELEPHONE sYs'rIEM Filed March 23,V 1940 28 Sheets-Sheet 8 l7"'. R. LAMBERTY A T TORNEV Oct, 6, 1942. E. l.. ERwlN E-rAL 2,298,205
l TELEPHONE SYSTEM n Filed Maron 23, 1940 28 sheets-sheet 9 mun/rs ro rau/w CIRCUIT ARECORDER AND TRUNK CRCU/T necanoens" LW- J yro Enanos/e cmcu/r .L'ERW//v f Mmm F. R. L-AMBERTY BV l MVWWM 'ATTORNEY l Oct. 6, 1942.l
E, L. ERWIN E TAL TELEPHONE SYSTEM Filed March 23. 1940 28 Sheets-Sheet 10 E. L. ERw//v Mmm F. R. LAMBERTV www ATroRA/Ey i olf-v 6, 1942- E. L. ERwlN ErAL 2,298,205
TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 11 MARKER c/ncu/r E. L. ERw//v F R. LAMBERTV A TTORNEV /N VE N TOPS Oct. 6, 1942. E. L. ERWIN E'rAl. 2,298,205.
TELEPHONE vSYSTEM Filed March '23, 1940 2s sheets-Sheet 12 N\ ...Sk
Oct. 6, 1942.
E. L. ERWIN ET AL" 2,298,205
TELEPHONE` SYSTEM 28 Sheets-Sheet 13 `Filed March 23, 1940 Q si ELE/@MN y '/NVENTORS ER. LAMBE/QTV Oct. 6, 194,2. E. L. ERWIN ET AL TELEPHONE SYSTEM Filed March 23. 1940 28 Sheets-Sheet 14 R. LAMBERTV BV A TTRNEV Oct. 6, 1942. y l:.l .v ERWIN ET Al. 2,298,205
TELEPHONE SYSTEM I Filed March 23, 1940 ZS'SheetS-Sheet l5 EL ERw//v /NVENTORS-m. AMBERTV OC- 6, 1942- E. ERwxN ET AL 2,298,205
TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 16 MARKER C /RC U/ T E. 1 ERw//v /NVEN To E R. AMBER Ty A T TORNE V 2 ocr; e, 1942. 'E. L. ERwlN Em TELEPHONE SYSTEM Filed March 2s. 1940 2a sheets-sheet 1v N\ ...Ek
E. L. ERw//v l NVEWORS' F. n. AMBER rr ATTORNEY l Oct. 6, 1942. E. L.. ERWIN Erm.
' v2,298,205 TELEPHONE SYSTEM l 28 Sheets-Sheet 18 Filed March 23, 1940 ELE/PMN /Nl/E/VTORSE "9 MAW/Wim ATTORNV Oct. 6, 1942. E. 1..,ERwlN ETAL 2,298,205
' TELEPHONE SYSTEM Filed March 23, 1940 28 Sheets-Sheet 19 A TToRA/fv' Oct. 6, 1942.
E. L.. ERwlN ET AL TELEPHONE SYSTEM Filed March 23, 19,40 28 Sheets-Sheet 20 E L. ERM/v "NVEWORS'ER AMBER rr A TTORNE V
US325510A 1940-03-16 1940-03-23 Telephone system Expired - Lifetime US2298205A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR962012D FR962012A (en) 1940-03-16
US324306A US2298204A (en) 1940-03-16 1940-03-16 Telephone system
US325510A US2298205A (en) 1940-03-23 1940-03-23 Telephone system
US401925A US2290205A (en) 1940-03-16 1941-07-11 Shoe and method of attaching outsoles
GB5087/48A GB656191A (en) 1940-03-16 1948-02-20 Improvements in or relating to automatic telephone systems
GB5086/48A GB656190A (en) 1940-03-16 1948-02-20 Improvements in or relating to automatic telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US325510A US2298205A (en) 1940-03-23 1940-03-23 Telephone system

Publications (1)

Publication Number Publication Date
US2298205A true US2298205A (en) 1942-10-06

Family

ID=23268182

Family Applications (1)

Application Number Title Priority Date Filing Date
US325510A Expired - Lifetime US2298205A (en) 1940-03-16 1940-03-23 Telephone system

Country Status (1)

Country Link
US (1) US2298205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519849A (en) * 1947-02-07 1950-08-22 Automatic Elect Lab Automatic telephone system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519849A (en) * 1947-02-07 1950-08-22 Automatic Elect Lab Automatic telephone system

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