US PATENT SUBCLASS 248 / 181.1
.~.~.~.~.~ Ball and socket type

Current as of: June, 1999
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248 /   HD   SUPPORTS

127  DF  STAND {14}
176.1  DF  .~ To hold a particular article {3}
177.1  DF  .~.~ Having platform for mounting article directly above stationary stand (e.g., tripod head) {3}
178.1  DF  .~.~.~ Adjustable platform {5}
179.1  DF  .~.~.~.~ Multiplanar platform adjustment at one point {2}
181.1.~.~.~.~.~ Ball and socket type {2}
181.2  DF  .~.~.~.~.~.~> Socket captures ball in upper hemisphere
182.1  DF  .~.~.~.~.~.~> With attached counterweight

DEFINITION

Classification: 248/181.1

Ball and socket type:

(under subclass 179.1) Multiplanar adjustable platform in which movement is facilitated by a spherical portion within a complementary cavity.