1931: STANLEY patents the world's 1st hands-free door operator actuated by photo-electric cells. In the post war 40's, supermarket owners were among the earliest types of customers to realize that patrons pushing carts or carrying bags deserve the convenience of automatic doors. 1950's and 1960's: In the early 50's, a hydraulic operator is introduced
Mike W. —
We called this company to fix the electric doors to the waiting room at our medical office. They sent a tech that claimed
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