IT454231A - - Google Patents

Info

Publication number
IT454231A
IT454231A IT454231DA IT454231A IT 454231 A IT454231 A IT 454231A IT 454231D A IT454231D A IT 454231DA IT 454231 A IT454231 A IT 454231A
Authority
IT
Italy
Application number
Other languages
Italian (it)
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 IT454231A publication Critical patent/IT454231A/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • B24B13/023—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made for grinding several lenses simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
IT454231D 1949-04-28 IT454231A (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR985293T 1949-04-28

Publications (1)

Publication Number Publication Date
IT454231A true IT454231A (cs)

Family

ID=9537287

Family Applications (1)

Application Number Title Priority Date Filing Date
IT454231D IT454231A (cs) 1949-04-28

Country Status (3)

Country Link
DE (1) DE804761C (cs)
FR (1) FR985293A (cs)
IT (1) IT454231A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036696B (de) * 1953-11-07 1958-08-14 Zeiss Jena Veb Carl Vorrichtung zum Herstellen von torischen Flaechen
US2779137A (en) * 1954-09-21 1957-01-29 Griscavage Frank Thomas Mirror grinding machine
US2754638A (en) * 1954-12-20 1956-07-17 Robert E Duffens Lens surfacing machine
DE1173360B (de) * 1960-08-25 1964-07-02 Philips Patentverwaltung Schleif- bzw. Polierwerkzeug zur Bearbeitung von mit verschiedenen Radien gekruemmten Oberflaechen umlaufend gelagerter Glasgegenstaende

Also Published As

Publication number Publication date
FR985293A (fr) 1951-07-17
DE804761C (de) 1951-03-01

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