2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Revenue Recognition (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Details
Deferred revenue and customer deposit	$ 576,954	$ 841,290
Costs in excess of billings	$ 0	$ 0

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

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