US PATENT SUBCLASS 128 / 206.23
.~.~ Mask/eyepiece sealing structure


Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
206.21  DF  .~ Face mask covering a breathing passage {6}
206.23.~.~ Mask/eyepiece sealing structure


DEFINITION

Classification: 128/206.23

Mask/eyepiece sealing structure:

(under subclass 206.21) Subject matter including structure for sealing the contact area between a mask and an eyepiece carried thereby.

(1) Note. A patent is placed as an original in this subclass only if it claims structural details of the mask/eyepiece sealing means, (i.e., a mere nominal recitation of a mask/eyepiece sealing means is insufficient to place a patent here).