Inner diameter micrometer

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Information

Patent Grant
D252501

References
Source

Patent Number
D252,501
Date Filed
Wednesday, February 22, 1978
46 years ago
Date Issued
Tuesday, July 31, 1979
45 years ago

Inventors
- Masao Nakahara
- Mineo Yamauchi
Original Assignees
- Mitutoyo Mfg., Co., Ltd.
Examiners
- Holtje; Nelson C.
Agents
- Androlia; William L.

US Classifications
- D10 - Measuring, testing, or signalling instruments
Field of Search
- US
- D10 70
- D10 71
- D10 72
- D10 73
- D10 74
- 033 166
- 033 169 B
- 033 178 R
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an inner diameter micrometer, substantially as shown and described.

US Referenced Citations (6)

Number	Name	Date	Kind
D57932	Scott	May 1921
2356037	Drucker	Aug 1944
2478427	Schmid	Aug 1949
2604703	Meyer	Jul 1952
2881529	Roch	Apr 1959
2923064	Rudolph	Feb 1960

Non-Patent Literature Citations (1)

Entry
American Machinist, 6/16/49, block centers micrometer.