John Hancock Preferred Income Fund III Research and Development Expenses 1970-1969 | HPS
John Hancock Preferred Income Fund III research and development expenses from 1970 to 1969. Research and development expenses can be defined as an expense arising from studies and product development processes.
| John Hancock Preferred Income Fund III Annual Research and Development Expenses (Millions of US $) |
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| John Hancock Preferred Income Fund III Quarterly Research and Development Expenses (Millions of US $) |
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