NL163088B - Huistelefooncentrale met ruggespraakverkeer. - Google Patents

Huistelefooncentrale met ruggespraakverkeer.

Info

Publication number
NL163088B
NL163088B NL6705921.A NL163088DA NL163088B NL 163088 B NL163088 B NL 163088B NL 163088D A NL163088D A NL 163088DA NL 163088 B NL163088 B NL 163088B
Authority
NL
Netherlands
Prior art keywords
telephone exchange
home telephone
back calls
calls
home
Prior art date
Application number
NL6705921.A
Other languages
English (en)
Original Assignee
Int Standard Electric Corp
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.)
Publication of NL163088B publication Critical patent/NL163088B/nl

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/42—Patterns; Masters models
    • B23Q35/44—Patterns; Masters models provided with means for adjusting the contact face, e.g. comprising flexible bands held by set-screws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49274—Piston ring or piston packing making
    • Y10T29/49284—Piston ring or piston packing making including machining or angular cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303416—Templet, tracer, or cutter
    • Y10T409/303696—Templet

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
NL6705921.A 1951-10-23 Huistelefooncentrale met ruggespraakverkeer. NL163088B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US252776A US2741017A (en) 1951-10-23 1951-10-23 Process for the production of a templet for the machining of piston rings to a predetermined shape on a copying turner's lathe

Publications (1)

Publication Number Publication Date
NL163088B true NL163088B (nl)

Family

ID=22957501

Family Applications (2)

Application Number Title Priority Date Filing Date
NL84115D NL84115C (nl) 1951-10-23
NL6705921.A NL163088B (nl) 1951-10-23 Huistelefooncentrale met ruggespraakverkeer.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL84115D NL84115C (nl) 1951-10-23

Country Status (4)

Country Link
US (1) US2741017A (nl)
CH (1) CH295176A (nl)
FR (1) FR1046653A (nl)
NL (2) NL163088B (nl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463487A (en) * 1981-04-30 1984-08-07 Associated Engineering Italy S.P.A. Method of manufacturing piston rings

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1403479A (en) * 1922-01-17 blettner
US410426A (en) * 1889-09-03 Half to williams andrits
US1314534A (en) * 1919-09-02 mummert
US1284439A (en) * 1916-08-23 1918-11-12 Wilkening Mfg Co Method of making piston-rings.
US1515472A (en) * 1920-09-16 1924-11-11 Harry S Frank Process of making piston rings
NL14017C (nl) * 1921-08-20
US1730429A (en) * 1924-08-29 1929-10-08 Irving C Jennings Device for boring noncircular holes
US1705643A (en) * 1926-07-29 1929-03-19 Zh Rikagaku Kenkyujo Method of manufacturing metallic rings for packing purposes
US1956505A (en) * 1933-09-01 1934-04-24 George Gorton Machine Company Forming guide for engraving and allied machines
US2242406A (en) * 1939-08-11 1941-05-20 Alexander P Stewart Templet
US2421065A (en) * 1944-02-25 1947-05-27 Howard G Hoffer Device for shaping lenses

Also Published As

Publication number Publication date
NL84115C (nl)
US2741017A (en) 1956-04-10
FR1046653A (fr) 1953-12-08
CH295176A (de) 1953-12-15

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