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Back to back locking


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Back to back locking
greatnessjason Offline
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#1
27-05-2014, 07:26 AM
Hi Peter
In RGS GK/0202 pg 15, there is a mention of "back to back" locking. What is the history behind such type of locking and what purpose does it serve in terms of the interlocking controls?
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Messages In This Thread
Back to back locking - by greatnessjason - 27-05-2014, 07:26 AM
RE: Back to back locking - by PJW - 28-05-2014, 08:56 PM

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