Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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02/15/1983
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Application #:
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06218152
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Filing Dt:
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12/19/1980
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Inventor:
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ARITAKA TATSUMI
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Title:
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MACHINE FOR FORMING SPIRAL GROOVES IN METAL PIPE INNER SURFACE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| NO. 1-2, MARUNOUCHI 2-CHOME, CHIYODA-KU |
| TOKYO, JAPAN |
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| SUGHRUE, ROTHWELL, MION |
| ZINN & MACPEAK |
| 1776 K ST., N. W. |
| WASHINGTON, DC 20006 |
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