Vintage Glass Medical Laboratory Pipette Stopper Clear U.S. Patent Glassware

Brand: Unbranded

Style: Vintage clear glass laboratory pipette stopper or dropper component with flared grip collar

Intended use: Biological and medical laboratory glassware

Material: Clear molded glass

Color: Transparent clear

Details: Textured flared collar for secure grip, tapered lower rod, molded upper knob with side projections, embossed stem text including "U.S. PAT." and additional patent wording

Quantity: 1 glass unit

Keywords: vintage labware, glass pipette stopper, medical laboratory glassware, biological lab equipment, collectible science glass