DIFF Subgroup
H01H 1/504 Full Title
Contacts (liquid contacts H01H29/04) > Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
H01H 1/504 Contacts (liquid contacts H01H29/04) > Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position