US PATENT SUBCLASS 92 / 237
.~.~ Circumferentially spaced portions at free end of skirt
Current as of:
June, 1999
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92 /
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EXPANSIBLE CHAMBER DEVICES
172
DF
PISTON
{19}
208
DF
.~ Open-ended hollow skirt type (e.g., trunk type) {15}
237
.~.~ Circumferentially spaced portions at free end of skirt
DEFINITION
Classification: 92/237
(under subclass 208) Apparatus in which the free end of the skirt-like member has parts which are circumferentially spaced from each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234+, for a skirt provided with a narrow slit in the wall thereof extending from the free end of said skirt.