US  2,053,281 <br/>
Expansion joint. 

 - Sept. 8, 1936 
<br/><br/> Pat.file 57 
<br/><br/><label>Subjects--Local Terms: </label><br/>ASPHALT EMULSION <br/>SEALANT 
<br/><br/><label>Call Number: </label>US 2,053,281