Tools and hardware – Other tools and implements – Abrading
Patent
1987-09-28
1989-01-10
Burke, Wallace R.
Tools and hardware
Other tools and implements
Abrading
Patent
active
D02993082
REFERENCES:
patent: D169539 (1953-05-01), Folli
patent: D219726 (1971-01-01), van Horn
patent: D274497 (1984-07-01), Zabel et al.
patent: 2042916 (1936-06-01), Viozzi
Burke Wallace R.
Corning Glass Works
Heflin Clare E.
Michaelsen Alfred L.
Wardell Richard N.
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