Road structure – process – or apparatus – Apparatus – Tool rotating in horizontal plane
Patent
1989-03-20
1990-05-15
Massie, IV, Jerome W.
Road structure, process, or apparatus
Apparatus
Tool rotating in horizontal plane
404118, E01C 1922
Patent
active
049253417
ABSTRACT:
A motorized rotary cement trowel is provided with a detachable trowel blade with a detachable trailing edge having a variety of forms of trailing-edge configurations and optional quick-disconnect means for attachment of the detachable trailing edge to the cement-trowel blade.
REFERENCES:
patent: 1005208 (1911-10-01), Heltzel
patent: 2556983 (1951-06-01), Root
patent: 2662454 (1953-12-01), Whiteman
patent: 2865269 (1958-12-01), McMillan
patent: 3375766 (1968-04-01), Zochil
patent: 3683761 (1972-08-01), Babic
patent: 4848959 (1989-07-01), Morrison
patent: 4859115 (1989-08-01), Morrison
Massie IV Jerome W.
Smith Matthew
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