(under subclass 111) Subject matter wherein the temples are biased by springs or by elastic metal members in addition to the usual temple structure either to yieldingly resist outward movement of the temple, or to engage the head of the wearer with yieldable pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114, for resilient or flexible temples.
150+, for connectors with resilient parts.
SEE OR SEARCH CLASS
267, Spring Devices, for spring structures generally.
